dc.creator Davis, Scott en_US dc.creator Plusquellic, D. F. en_US dc.creator Suenram, R. D. en_US dc.date.accessioned 2006-06-15T19:56:54Z dc.date.available 2006-06-15T19:56:54Z dc.date.issued 2000 en_US dc.identifier 2000-MI-04 en_US dc.identifier.uri http://hdl.handle.net/1811/19701 dc.description Author Institution: Optical Technology Division, National Institute of Standards and Technology en_US dc.description.abstract Recent efforts towards characterization of biologically relevant molecules exploiting rotationally resolved gas phase spectra will be reported. The experimental techniques for i) generating sufficient densities of supersonically cooled molecules with high melting points $(T>200C)$ and ii) obtaining rotational resolution of large aromatic system having $>20$ heavy atoms will be presented. The low resolution $(\sim 1 cm^{-1})$ UV spectrum of structurally chiral $1,1^{\prime}-bi-2-hydroxynaphthalene$ has been obtained. The LIF spectrum near 342 nm reveals the presence of two prominant features separated by $50 cm^{-1}$. This splitting is tentatively interperted in terms of an exciton interaction arising from the proximity of the two naphthol subunits. The results of ongoing efforts to obtain the rotationally resolved spectra, which are expected to further validate this interpertation, will be discussed. Furthermore, the rotational constants obtained from both MW and UV studies will provide detailed structural information. In particular, the dihedral angle defining the out-of-plane orientation between the two naphthol ring systems, which gives rise to the chiral nature and therefore the degrees of optical activity, will be accurately determined. Additionally, relationships between the experimental results and theoretical predictions will also be discussed. en_US dc.format.extent 126904 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title A NEW LOOK AT A CHIRAL PROTOTYPE: ROTATIONALLY RESOLVED MW AND UV SPECTRA OF JETCOOLED 1.1 -BI-2-HYDROXYNAPHTHALENE en_US dc.type article en_US
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